Home / 30,614.32-45,920.04-12,840.36

Finding the Fourth Proportional to 30,614.32, 45,920.04 and 12,840.36

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Solution

The fourth proportional to 30,614.32, 45,920.04 and 12,840.36 is: 19,259.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,614.32 : 45,920.04 = 12,840.36 : x
  2. Step 2: Convert to fraction form
    30,614.32/45,920.04 = 12,840.36/x
  3. Step 3: Cross multiply
    30,614.32x = 45,920.04 × 12,840.36
  4. Step 4: Simplify right side
    30,614.32x = 589,629,844.81
  5. Step 5: Solve for x
    x = 589,629,844.81/30,614.32
  6. Step 6: Final answer
    x = 19,259.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.